/**
 * @file Time Utilities
 * @description Date/time formatting and manipulation utilities
 */
/**
 * Format options
 */
export interface FormatOptions {
    locale?: string;
    timeZone?: string;
}
/**
 * Parse date input to Date object
 */
export declare function parseDate(input: string | number | Date): Date;
/**
 * Format date with pattern
 */
export declare function formatDate(date: string | number | Date, pattern?: 'short' | 'medium' | 'long' | 'full', options?: FormatOptions): string;
/**
 * Format time
 */
export declare function formatTime(date: string | number | Date, pattern?: 'short' | 'medium' | 'long', options?: FormatOptions): string;
/**
 * Format date and time
 */
export declare function formatDateTime(date: string | number | Date, datePattern?: 'short' | 'medium' | 'long', timePattern?: 'short' | 'medium' | 'long', options?: FormatOptions): string;
/**
 * Format relative time
 */
export declare function formatRelative(date: string | number | Date, options?: FormatOptions): string;
/**
 * Format duration
 */
export declare function formatDuration(ms: number, options?: {
    verbose?: boolean;
}): string;
/**
 * Check if date is today
 */
export declare function isToday(date: string | number | Date): boolean;
/**
 * Check if date is yesterday
 */
export declare function isYesterday(date: string | number | Date): boolean;
/**
 * Check if date is within the last N days
 */
export declare function isWithinDays(date: string | number | Date, days: number): boolean;
/**
 * Get start of day
 */
export declare function startOfDay(date: string | number | Date): Date;
/**
 * Get end of day
 */
export declare function endOfDay(date: string | number | Date): Date;
/**
 * Add time to date
 */
export declare function addTime(date: string | number | Date, amount: number, unit: 'seconds' | 'minutes' | 'hours' | 'days' | 'weeks' | 'months' | 'years'): Date;
/**
 * Get difference between dates
 */
export declare function dateDiff(date1: string | number | Date, date2: string | number | Date, unit: 'seconds' | 'minutes' | 'hours' | 'days' | 'weeks' | 'months' | 'years'): number;